Ephraim Feig, Fred Greenleaf
Applied Optics
A new algorithm for computing Hadamard transforms is presented. If n is a power of four, then the new algorithm uses ⅞ n logn multiply/adds to compute a Hadamard transform of length n. © 1994 IEEE
Ephraim Feig, Fred Greenleaf
Applied Optics
Don Coppersmith
Journal of Cryptology
Don Coppersmith, Moshe Lewenstein
SIAM Journal on Discrete Mathematics
Don Coppersmith
IBM J. Res. Dev